REFRIGERATING/AIR-CONDITIONING DEVICE - MITSUBISHI ELECTRIC CORP

Title:

REFRIGERATING/AIR-CONDITIONING DEVICE

Document Type and Number:

WIPO Patent Application WO/2007/039951

Kind Code:

A1

Abstract:

A refrigerating/air-conditioning device in which at least the followings are realized: first, foreign matters do not return to a compressor from an accumulator in piping cleaning operation, and secondly, foreign matters are recovered in a short time. A heat source side unit has an accumulator with a function of separating and recovering foreign matters in existing piping, and also has a recovery container for recovering the foreign matters separated by the accumulator. At the lower part of the accumulator is provided oil return piping for returning refrigerator oil to a compressor via a flow rate regulation means. In normal cooling/heating operation, the refrigerator oil is made to flow in the oil return piping, and in piping cleaning and foreign matter recovery operation, the flow rate regulation means is totally closed.

Inventors:

TOYOSHIMA MASAKI (JP)
YOSHIMURA SUSUMU (JP)
WAKAMOTO SHINICHI (JP)
MORIMOTO OSAMU (JP)

Application Number:

PCT/JP2006/309300

Publication Date:

April 12, 2007

Filing Date:

May 09, 2006

Export Citation:

Click for automatic bibliography generation Help

Assignee:

MITSUBISHI ELECTRIC CORP (JP)
TOYOSHIMA MASAKI (JP)
YOSHIMURA SUSUMU (JP)
WAKAMOTO SHINICHI (JP)
MORIMOTO OSAMU (JP)

International Classes:

F25B43/00; F25B1/00; F25B43/02; F25B45/00; F25B47/00

Foreign References:

JP2005043025A	2005-02-17
JP2002228306A	2002-08-14
JP2004097995A	2004-04-02
JP2001263871A	2001-09-26
JPH06147658A	1994-05-27
JPH09152202A	1997-06-10
JP3002520U	1994-09-27
JP2003156258A	2003-05-30
JP2000179952A	2000-06-30

Other References: